Tarpaulin

6.3easy start · #17 of 26
in Test Coverage Tools

Free to practise onnot on record
Free trialnot on record
Well documentedyes
Runs where you workyes

Runs on Linux, Mac, self-hosted, Windows.

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Tarpaulin is ranked #17 of 26 in test coverage tools on The Geeks Club. It runs on Linux, macOS, Self-hosted, Windows.

Compared on test coverage tools

Coverage types: line
Supported languages: Rust
Report formats: JSON, stdout, XML, HTML, LCOV
Pull-request annotations: Yes
Self-hosted option: Yes
Historical trends: Yes
Coverage gates: Yes

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The record

Purpose: Tarpaulin is a code coverage reporting tool for Rust projects using the Cargo build system.
Coverage: The README describes line coverage as working and warns that results may contain minor inaccuracies.
Reports: Tarpaulin can generate HTML, JSON, stdout, XML, and LCOV coverage reports.
Test targets: It can collect coverage for tests, doctests, benchmarks, examples, libraries, and binaries.
Filtering: It supports including or excluding files from coverage results and configurable coverage runs through a TOML file.
Coverage services: The README describes uploading coverage to Coveralls or Codecov.
Installation: Tarpaulin is a command-line program installed with Cargo, and the README also mentions Nix and cargo-binstall installation options.
Operating systems: The README describes use on Linux, Mac, and Windows, and says Tarpaulin can also run in Docker.
Linux limit: The default Linux Ptrace backend only works on x86_64; the README says users can switch to LLVM instrumentation with --engine llvm.
Backend caveats: The README warns that LLVM coverage may not return data when tests exit with a nonzero code and has limitations with thread safety and fork-like system calls.
Branch coverage: The CLI help labels branch coverage as not implemented.
Support: The README welcomes issues, feature requests, and pull requests, and points users to troubleshooting guidance.
License: Tarpaulin is licensed under both MIT and Apache License 2.0.
Release signing: The GitHub release page says the 0.37.4 tag and its associated commit were signed with a verified committer signature.

Where it ranks on The Geeks Club

Best Test Coverage Tools in 2026#17 of 26

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Sources

github.com/xd009642/tarpaulin· checked 5 Oct 2026
github.com/xd009642/tarpaulin/releases· checked 5 Oct 2026